President Barack Obama speaks to reporters in the Brady Press Briefing Room of the White House in Washington, Wednesday, May 21, 2014, after he met with Veterans Affairs Secretary Eric Shinseki and Deputy Chief of Staff Rob Nabors.

PARIS — French President Francois Hollande said he will confront President Barack Obama over a potential $10 billion fine against BNP Paribas, France’s biggest bank, for violating American trade sanctions.

“I don’t know if he wants to talk about it, but I will talk about it,” Hollande told reporters Wednesday on a visit to Warsaw, Poland. Obama and Hollande were to meet in Brussels on Wednesday at a gathering of Group of Seven leaders. The BNP discussion was more likely to occur at a bilateral dinner Thursday in a Paris restaurant, an official in Hollande’s office said.

Hollande’s pledge to raise the issue with Obama signals his administration’s growing frustration. The French president had already sent a letter to Obama in early April complaining about the penalties the bank might face.

Since then, potential fines have escalated to levels Foreign Minister Laurent Fabius described Tuesday as unreasonable.

Hollande’s letter was sent to prepare for a phone conversation between the two leaders that happened a few days later.

In both exchanges, Hollande stressed the “disproportionate” penalties being considered and the “threats to the financial system” a giant fine could pose.

He said France and BNP would work with U.S. regulators, the official added.

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